Listar por autoría "09c11431-31c6-48f0-9179-9f2e53ab27c9"

Mostrando ítems 1-8 de 8

    • closedAccess   Drift-flux model in a sub-channel of rod bundle geometry 

      Juliá Bolívar, José Enrique; Hibiki, Takashi; Ishii, M.; Yun, Byong-Jo; Park, Goon-Cherl Elsevier (2009)
      In view of the practical interest of the drift-flux model for two-phase flow analysis, the distribution parameter and drift velocity constitutive equations have been obtained for subcooled boiling flow in a sub-channel of ...

    • closedAccess   Flow regime development analysis in adiabatic upward two-phase flow in a vertical annulus 

      Juliá Bolívar, José Enrique; Ozar, Basar; Jeong, J.J.; Hibiki, Takashi; Ishii, M. Elsevier (2011)
      In this work radial and axial flow regime development in adiabatic upward air–water two-phase flow in a vertical annulus has been investigated. Local flow regimes have been identified using conductivity probes and neural ...

    • closedAccess   Flow regime transition criteria for two-phase flow in a vertical annulus 

      Juliá Bolívar, José Enrique; Hibiki, Takashi Elsevier (2011)
      In this work, a new flow regime transition model is proposed for two-phase flows in a vertical annulus. Following previous works, the flow regimes considered are bubbly (B), slug (S) or cap-slug (CS), churn (C) and annular ...

    • closedAccess   Flow structure of gas-liquid two-phase flow in an annulus 

      Ozar, Basar; Jeong, J.J.; Dixit, A.; Juliá Bolívar, José Enrique; Hibiki, Takashi; Ishii, M. Elsevier (2008)
      The flow structure of gas-liquid two-phase flow in vertical annulus channel has been investigated. The inner and outer diameters of the annular channel were 19.1 and 38.1 mm, respectively. The total height of the test ...

    • openAccess   Flow Structure of Subcooled Boiling Water Flow in a Subchannel of 3 x 3 Rod Bundles 

      Juliá Bolívar, José Enrique; Yun, Byong-Jo; Park, Goon-Cherl; Hibiki, Takashi Atomic Energy Society of Japan (2008)
      In this paper, the interfacial flow structure of subcooled water boiling flow in a subchannel of 3 x 3 rod bundles is presented. The 9 rods are positioned in a quadrangular assembly with a rod diameter of 8.2mm and a ...

    • closedAccess   Interfacial area transport of vertical upward air-water two-phase flow in an annulus channel 

      Jeong, J.J.; Ozar, Basar; Dixit, A.; Juliá Bolívar, José Enrique; Hibiki, Takashi; Ishii, M. Elsevier (2008)
      An experimental study on the interfacial area transport (IAT) of vertical, upward, air-water two-phase flows in an annulus channel has been conducted. The inner and outer diameters of the annular channel were 19.1 mm and ...

    • closedAccess   Local flow regime analysis in vertical co-current downward two-phase flow 

      Juliá Bolívar, José Enrique; Liu, Y.; Hibiki, Takashi; Ishii, M. Elsevier (2013)
      In this work, both global and local flow regimes in two-phase downward flow in a 50.8 mm internal diameter pipe in adiabatic conditions have been identified. The bubble chord length distributions measured simultaneously ...

    • openAccess   On the use of area-averaged void fraction and local bubble chord length entropies as two- phase flow regime indicators 

      Hernandez, Leonor; Juliá Bolívar, José Enrique; Paranjape, Sidharth; Hibiki, Takashi; Ishii, M. Springer Verlag (2010)
      In this work, the use of the area-averaged void fraction and bubble chord length entropies is introduced as flow regime indicators in two-phase flow systems. The entropy provides quantitative information about the disorder ...